Panel orientation is the single biggest lever a solar installer has before anything is even wired up. This simulator models a south-facing panel at any latitude across a full year, using the real solar-declination formula to compute how far off-target a fixed mount drifts as the seasons turn — and how much of that loss a quarterly, monthly, or fully continuous tracking schedule recovers. Drag the day-of-year slider (or hit Animate year) to watch the sun's solar-noon elevation rise and fall, compare four tilt strategies side by side in 3D, and read the live incidence angle, irradiance factor, and annual yield trade-off between a cheap fixed rack and an expensive tracking mount.